Device for effecting the radiation of heat.



.N0.79Q.416. PATENTED MAY 23,1905.

, s. w. ZENT.

DEVICE POR EPFECTING THE RADIATION .OP HEAT.

M PLIOATION FILED AP1L14, 1904.

UNITED `STATES Patented May V23, 1905.

PATENT OFFICE.

vSOHUYLER W. ZENT, OF EVANSVILLE, INDIANA, ASSIGNOR TO THE ZENT AUTOMOBILE MANUFACTURING COMPANY, OF BELLEFONTAINE, OHIO.

DEVICE FOVR EFFECTING -THE RADIATION OF HEAT.

SPECIFICATION forming part of` Letters Patent No. 790,416, dated May 23, 1905.

Application inea Apii114,19o4. serial Nofzoazll.

To all whom it may concern:

Be it known that I, ASCHUYLER W. ZENT, a citizen of the United States,residing in Evansville, county of Vanderburg, and State of Indiana, have invented certain new and useful Improvements in Devices for Efiecting the Radiation of Heat, of which the following is a specification.

My invention relates to a method for effecting the rapid radiation of heat from objects exposed to a high temperature, and especially to reducing the temperature of internal-combustion cylinders.

The object of my invention is to radiate heat by means of tubes attached to and radiating from the outside surface of the cylinder. I accomplish this result by having the tubes so arranged and constructed that by their use the heat is carried from the cylinder and the cylinder sufficiently cooled for all necessary purposes.

This invention is different from most of those now in use in that while the latter seek to accomplish this result simply by the heatconducting quality of the metal used my jtubes are so arranged that not only do they do this, but each tube acts as a flue or chimney to carry off all heated air arising from that part of the cylinder immediately under the arch of my tube.

In the drawings forming a part hereof, Figure 1 is a front view of my improved tube, showing tube cut a certain distance and the cut ends spread somewhat in the form of an arch. Fig-2 is a side view of my improved tube. Fig.` 3 is a section of acylinder having grooves in the outside surface thereof and containing a number of my improved tubes secured therein, and Fig. 4 is a fragmentary view of a portion of the cylinder looking toward the outer open ends of the tubes.

In the drawings, A and A" indicate the spread ends of the tubes; B, the grooves in the surface of the cylinder. These grooves may extend in any direction which I deem desirable.

O represents the archway between the spread ends of the tubes.

To secure my improved tubes in position, I

place the spread ends Anand A in the groove B. I then place a piece of heat-conducting metal alongside same in said groove B and tamp or press it securely in place, thus partially or wholly filling the groove and holding the spread ends of tubes securely in place. It will be observed that the ends of adjoining tubes are held in the same groove by one piece of metal. that each tube is directly in front of the second tube in its rear. While I do not necessarily confine myself to this arrangement, I iind that u it has peculiar advantages, among which may be mentionedl the fact that a clear draft is given directly through eacharch, thus giving a freer circulation of air next to tbecylinderwall. In having one unoccupied groove under each arch O, I allow much more radiatducting quality of the metal, by the radiation Vthrough the tubes, and by radiation through the arches. The peculiar shape of the tubes at their lower ends gives'large contact-surface on the cylinder wall and practically covers the outside surface of the cylinder. By the tubes being in contact with one another a portion of the heat can be conducted by the adjoining tubes from an overheated section of the cylinder.

It is not necessary that the grooves B be square. They may be dovetailed or any other shape that I desire.

I-Iaving fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

`1. In a device for eecting radiation, the

4combination with a surface, subject to heat effects, of heat-radiating air-conductingtubes having forked or arched open ends secured to the said surface.

2. In a device for effecting radiation, the combination with a surface, subject to heat effects, having recesses, of heat-radiating airconducting tubes having forked or arched open ends secured in said recesses.

3. In a device for effecting radiation, the combination with a surface, subject to heat eifects, having recesses, of heat-radiating air- In Fig. 3 it will be noticed conducting tubes having forked or arched open ends received .in said recesses, and independent members received in said recesses and securing the forked or arched ends of the tubes therein.

4. In a device for effecting radiation, the combination With a surface, subject to heat effects, of `heat-radiating members having forked or arched ends secured to said surface.

5. In a device for effecting radiation, the combination with a surface, subject to heat effects, having recesses, ofheatradiating members having forked or arched ends received and secured in said recesses, said recesses each receiving and securing one leg of the fork or arch of certain successive heat-radiating members.

6. In a device for 'effecting radiation, thel combination With a surface, subject to heat effects, having recesses, of heat-radiating members having forked or karched ends received and secured in said recesses, said recesses cach receiving and securing one leg of the fork or arch of certain successive heat-radiating members, and independent fastening members received in the recesses between the legs and securing them.

7. In a device for effecting radiation, the

combination with a surface, subject to heat effects, having grooves, of heat-radiating and air-conducting members having open forked or arched ends the legs of which are received in said grooves, said grooves each receiving and securing one leg of the fork or arch of a row of heat-radiating members, and also receiving and securing one leg of the fork or arch of a succeeding row of heat-radiating members.

8. In a device for effecting radiation, the combination with a surface, subject to heat effects, having grooves, of heat-radiatingaml air-conducting. members having open forked or arched ends the legs of which are received in said grooves, said grooves each receiving and securing one leg of the fork or arch of a row of heat-radiating members, and also receiving and securing one leg of the fork or arch of a succeeding row of heat-radiating members, and independent fastening-strips in the grooves between the rows of legs and securing them in the grooves.

ln testimony whereof I hereunto aliix my signature in the presence of two witnesses.

SCHUYLER lV. ZENT.

Witnesses:

F. C. GORE, A. F. THURI-IoUs'r. 

